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a - <br /> NEW <br /> A <br /> i <br /> LOWER DETECTION LIMIT ON EPA 602 ANALYSIS <br /> Lower Detection Limits on the 602 analysis ran on the water sampled from <br /> the excavation ranper <br /> ued from 2.5 ug/L (ppb) for wale{ under the <br /> i. unleaded tank Sample I.D. 88-2104-3 to 1250 ug/ Pp <br /> under the regular tank, Sample I.D. 88-2104-2. This variance in the <br /> €. <br /> lower detection limit occurs from interferances in the samples, where <br /> as the sample has to be diluted to insure reliable results from the analysis. <br /> Examples of interferance are sediment clouding, high concentrations ranges <br /> j of the contaminate(5) <br /> of interest, water chemistry irregularities, <br /> i <br /> (PH, EH, TOC, Etc.). <br /> A <br /> 1 <br /> l <br /> 4 t, <br /> i ; <br /> 5. <br /> � I <br /> c <br />